parker770

I've been chasing some front end problems for what feels like forever. Car is '92 SC300 with ~160k.

Over bumps, I was getting a clunk from the right front.

In the last few months, I have changed:

-LCAs(new Supra LCAs)
-steering rack
-daizen rack bushings
-tie rods(inner and outer)
-sway bar end links

Since doing the work, the clunking has progressed from only occurring over large bumps to now just constantly clunking over every little imperfection in the road.

In addition, over severe bumps, the right front tire seems to be moving back and forth pretty significantly, causing the steering wheel to shake back and forth. It has gotten to the point where I really don't even like driving the car at all, so it has been sitting whenever possible.

The shocks on the car are original, and DEFINITELY need to be replaced. My question is, could a badly blown shock and/or mount cause the issues above? I have also thought about the upper control arms, but I doubt if they would cause this.

Either way, the shocks need to be replaced, but if the problems continue, I will be frustrated, as there won't really be any parts left to replace.

SChema

iTrader: (2)

Check out the mounting hats of the struts as well. You said the struts are original, the rubber may have deteriorated over time.

good2go

iTrader: (6)

I didn't see it anywhere on your list, so have you checked your subframe bolts? It could explain your symptoms too.

scENFORCER

^ yeah, tighten the subframe bolts. Theres a maintenance thread here somewhere which says exactly how much to tighten them. I got my mechanic to do it (took him a second) while my car was in the air during my last oil change. Made a difference..

MidloSC

iTrader: (1)

Possibilities:
UCA Bushings
Struts
Strut mounts.

Sometimes with wear a shock/strut will rattle internally.

kikcaffine

iTrader: (3)

Ball joints?

lev00221

iTrader: (28)

I had a similar problem..........I explained it in a thread that I created.........it was my brakes.

https://www.clublexus.com/forums/sus...tle-sc400.html

Good luck!
Luis

stockhatch

iTrader: (12)

Blown struts will for sure do what you are describing.

parker770

Well, I already have the LS400 brakes on the front, so hopefully its not them

2low2go

If it started on only big bumps and now clunks on every little bump AND your struts are original, it's time to replace them. Doesn't matter how many miles is on your car, those struts are old and most likely leaking. Replace them with 97+ struts...they are the same but much cheaper.